Supply of multi-standard high-quality polyurethane bud-ring standard

Mine hydraulic support repair special polyurethane Lei-ring is one of the hydraulic support for the coal industry repair professional development and production of a range of products. Product complies with Q / XXY-402-80, GB10708.3-89 standards. The product uses polyurethane materials accompanying the turning process. Its professional and strong, rigidity, abrasion resistance, excellent sealing effect, high quality, reliable performance in the industry and the country has been in the lead. Trusted by our customers. Specifications: NL40 × 52 × 10 Packing: film bag & carton